Waste-trap



A. S. NEWTON.

WASTE TRAP.

APPLICATION FILED MAR. 1, I920.

Patented July 27, 1920.

INVENTOR mw/- J? Z04; MW

AT .7 ORN E Y UNITED STATES PATENT OFFICE.

ALBERT S. NEWTON, OF PROVIDENCE, RHODE ISLAND.

WASTE-TRAP.

Application filed March 1,

To all whom it may concern:

Be it known that I, ALBERT S. NEWTON, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in-Waste-Traps, of which the following is a specification.

My invention relates to waste traps. In such traps a central verticaleduct pipe is commonly used. Because of its tubular character the pipein time develops, because of rust, holes whereby the seal of the trap isbroken. In such traps also complete accessibility to all interiorportions of the trap for cleaning purposes is impossible.

The essential objects of my invention are to avoid the disadvantages ofa vertical educt pipe; to prevent rust; to prevent holes in the memberoccupying the place of the educt pipe whereby the seal of the trap isbroken; to make the trap accessible in all portions for cleaningpurposes; and to attain these ends in a simple, inexpensive andefficient structure.

To the above ends essentially my invention consists in such parts and insuch combinations of parts as fall within the scope of the appendedclaims.

In the accompanying drawings which form a part of this specification,

Figure ,1 is a central vertical section of a trap embodying myinvention, and

Fig. 2, a section of the same on line w, 00, of Fig. 1.

Like reference characters indicate like parts throughout the views.

The trap comprises a substantially cylindrical tubular body or casing 5having an open top and bottom. Upon the upper and lower ends of the bodyare internal threads 8 and 9 respectively. An elbow 10 has threads 11 onone end engaging threads 8, and threads 12 on its outer end engagingthreads 13 on a pipe 14. The members 10 and 141 constitute the eductionpipe or outlet of the trap.

A removable member or cap closes the lower end of the trap. Thiscomprises a Specification of Letters Iatent.

Patented July 27, 1920.

1920. Serial No. 362,458.

circular plate 17 adapted to abut against the end of the trap, and anannular flange 1S inset from the periphery of the plate upon its rearface and provided with a thread 20 adapted to engage the thread 9. Thereis a squared projection 21 on the exterior face of the plate toaccommodate a wrench. The central portion of the plate has in its innerface a threaded recess 22 to receive a thread 24; upon a solid post 25supporting upon its upper end a horizontally disposed baffle plate 26having a depending peripheral portion 27.

The body has near its lower end an annular opening 29 provided with athread 30 engaging a thread 31 on an upwardly directed elbow 32. Athread 3 1 in the upper end of the elbow engages a thread 36 on avertical pipe 37. This pipe and elbow constitute the inlet pipe.

The course of the water is from the inlet pipe into the body of thetrap, and thence through the outlet pipe. The normal water level in thetrap is some distance below the baffle plate.

It will be observed that the outlet is in the upper portion of the body,and that the sole function of the post is to support the bafile plate.Hence the post is solid.

For interior cleaning the cap is by rotation removed carrying the postand baffle plate, thus making the interior of the entire trap bodywholly accessible.

The function of the baffle plate 27 is to intercept the passage of thewater from the inlet pipe to the outlet pipe during the period ofsiphonage. The water which impinges upon the bottom face of the baffleplate is thrown down into the body of the trap.

I claim 1. In a waste'trap, a body, an inlet pipe near the bottom of thebody, an outlet pipe in the upper portion of the body, a vertical postin the body, and a bafiie plate on the top of the post below the outletpipe.

2. In a waste trap, a body, an inlet pipe near the bottom of the body,an outlet pipe in the upper portion of the body, a solid vertical postin the body, and a horizontally inner face of the cap, a baflie plate onthe disposed bailie plate on the post between the post, an outlet pipein the body above the 10 inlet pipe and the outlet pipe. bafiie plate,and an inlet pipe in the body 3. In a waste trap, a 'body provided withbelow the plate. a thread upon its lower end, a cap upon In testimonywhereof I have aflixed my the body provided with a thread adaptedsignature. to engage the first thread, a projection upon the outer faceof the cap, a post fast to the I ALBERT S. NEWTON.

